A ReactiveSwift.Property equivalent in Combine

Property.swift

import Combine
import Foundation

final class Property<Value> {
	
	// MARK: Public properties
	
	var value: Value { subject.value }
	
	// MARK: Private properties
	
	private var subject: CurrentValueSubject<Value, Never>
	private var cancellable: AnyCancellable?
	
	// MARK: Initializers
	
	init<P: Publisher>(
		initialValue: Value, then publisher: P
	) where P.Output == Value, P.Failure == Never {
		self.subject = CurrentValueSubject(initialValue)
		self.cancellable = publisher.subscribe(subject)
	}
	
}

extension Property: Publisher {
	typealias Output = Value
	typealias Failure = Never
	
	func receive<S>(subscriber: S) where S: Subscriber, S.Input == Output, S.Failure == Failure {
		subject.receive(subscriber: subscriber)
	}
}